Storage battery



May 4 1926. 1,583,648

R. CL EBEPJFJEFQ STORAGE BATTERY Filed Sept. 2, 1922 @Hoz nu) g PatentedMay 4, 192,6.

BLYKOD C. BENNER, OF'BAYSIDE, NEW- YORK, ASSIGNOR PATENT orifice'.

'ro THE Panero-LITE COMPANY, INC., 0F YOBKQN. Y., A CORPORATION OF NEWYORK.

sroaaeia. BATTERY.

Application led September 2, 1922. Serial No. 585,960.

To all whom it mayoncem:

yBe it known that I, RAYMOND C. BENNER, a citizen of the'United'States,residing at Bayside, in the county of Queens and State of New York, haveinvented'certain new and useful Improvements in Storage Batteries, ofwhich the following is a specification.

This invention relates to storagel batteries generally, b'ut.particularly tothe types of storage batteries used with flashlights andradio apparatus. ln these and other special types o storage batterieswhichv are handled considerably andv used about clothing andcorrodiblearticles, it is highly desirable to prevent the escape of electrolyte,corrosive gases and va o r, and the primary object of this invention istherefore to provide a storage battery that shall retain the electrolyteand vapors, and absorb or neutralize the escaping gases.

The above and other objects and the novel features of the invention willbe apparent from the following description taken with.

the accompanying drawings, in which Figs. 1 and 2 are, respectively, 'atop plan view and a central vertical sectional view of a storage batteryembodying this invention; and Fig. 3 is a sectional view illustratinganother embodiment of my invention. Referring to Figs. :l and 2 of thedrawings, the cell jar J may be of hard rubber orother suitable materialadapted to contain ppsitive and negative electrodes andi the acidelectrolyte E.

positive and negative binding posts B vjoined thereto. These posts maypro]ect` through a transparent cover C, desirably of celluloid,

which has a groove G in .it-s lower face adjacent its margin to ,receivethe upper edge of the jar J, to which the cover may be united by anacid-tight joint, as by placing battery sealing composition in saidgroove. v

The means for arrestin escape of electrolyte and vapor and re ucing orabsorbing corrosive gases is desirably placed at the upper end of thejar as on the cover C which has-a threaded hole H adapted to receive anexternally threaded ortion D of a vent device made of cellul oid or thelike .con-` structed to form a combined acid trap, vapor arrestor andabsorbent chamber.

One endrV of the vent forms a vapor ar- .restor which projects into thespace in the jar vabove the electrolyte and may be funnelshape andprovided with an aperture, as at A, to permit the escape of gas and .thereturn of electrolyte carriedout by the escaping gas or otherwise. Thevapor arrestor V may contain oiled glass wool W or other suitablematerial which will intercept vapor in the escaping gas withoutinterfering with the free passage of such gas, as ex plained in myPatentl No. 1,506,216, dated August 26, 1924.

The upper or outer endv of the cup or vent may be enlarged to provide anabsorbent chamber S having a bottom portion b" that bears against theupper side ofthe cover C. A baille Vplate F of Celluloid or the likerests loosely on the inner side of the bottom S and serves as a coverfor the vapor arrester V to retard escape of oil and acid fromthechamber V into the chamber containing the absorbent material R butpermitting the escape of gas around its edge into the absorbent chamber.As shown in Fig. 2, the absorbent material R vmay consist of porous padssuch as ,sheetsv of u inv gases given' oil', gsuch as*v ozone, and the`sodium carbonate neutralizes any acid which may pass throughfthe vaporarrester. In the arrangement shown the upper pads are desirablysaturated with sodiumv carbonate and' the'lower oneswith sodiumhyposulte sothat any sulfur dioxid liberated by the de composition ofthe sodium hyposultite will be takenup by the 'sodiumjcarbonate Thesechemically treated pads will effectively neutralize the corrosive gasesfrom the sulfurie acid cell when on charge", discharge and on shelf. l

Other kinds of absorbentmaterial may vbe' employed instead of the padsR. In

the device shown in Fig. 3, for example, a quantity 'of activatedlcarbon R is carried in the cap K, the same being held in place by aerforatedplate 1*" cemented to the cap. uch carbon has a very highadsorption capacity for gases and thus will also `and needs renewal.

absorb or dispose of the 'corrosive gases and vapors given off in thecell.

An indicator L that Achanges color or other condition such as litmusvpaper may be placed upon the absorbent pads or activated carbon inside-of the transparent cap K in position where it is visible to 'show whenthe gas absorption system is exhausted The cap K may be of suitabletransparent material suchas Celluloid and is ladapted to screw onto thetop eiid of the vent device to holdA the absorbent material and platesin place, and isy provided with a suitable gas vent K. The condition ofthe electrolyte and elements of the battery and the condition of the gasabsorption system may be readily determined! through the transparent jarcover and the transparent cap of the gasl absorption chamber. i

The space T between the inside of the cover andy the aperture A ot' thevapor a-rrestor V forms an acid trap to preventtlie spil-ling of theacid when t-he battery istilted or inverted. However, for practicalpurposes, it is most desirable that electrolyte. absorbent material suchas glass Wool or sulite pulp bers be packed around all sides of theplates', Whether it is used between the plates or not. Theelectrolyteabsorbent carries practically all of the V,electrolyte andprevents the formation of spray in the space T during gassing. Unlesssuch absorbent material is used considerable acid enters the vaporarresting and gas absorptionfsyst'em `which then becomes exhausted veryquickly.

The acid absorbent material may also bel inserted between thinner platesto take the place of separators, or may be used inl conjunction withsuchseparators,` v

While a particular embodiment of the invention is disclosed ity will beunderstood thatdetailsjthereof may be varied without departing from thespirit of the invention f or sacrificing the advantages thereof. 'l Iclaim v 1. In a storage battery, the' combination .,With electrodes andan electrolyte, of a container therefor, vap`or arresting means carriedby said container above said electrolyte, and absorbent ineanscarried bysaid container above said vapor. arresting means.

2,. In a storage battery, the `combination with electrodes and anelectrolyte, ot a container therefor, absorbent means carried by saidcontainer above said electrolyte, and indicating means associated withsaid absorbent means to indicate the condition thereof.

3. In a storage battery, the combination with electrodesandian'electrolyte, of a container therefor, vapor' arresting meansabove Y said electrolyte, chemically-treated absorb-p ent means abovesaid vapor arresting means, and indicating means associated with saidabsorbent means to indicate the condition thereof.

4. Ina storage battery, in combination,

a cover having an opening, ay vent-in said opening, an'd a porous pad in`said vent carrying means for treating andneutralizing corrosive gas.

5..'In av storage' battery, in combination,`

transparent material, and chemically-treated l absorbent means in saidcontainer above said electrolyte and visiblev through lsaid transparentmaterial.

7. In a storage battery, the combinationwith electrodes and anelectrolyte, of a container therefor having a cover comprising atransparent portion, absorbent` means 1n, y

said container above said electrolyte, and

means visible through said transparent por-- tion adapted to indicatethe condition of said absorbent means,

I8. In a storage battery, in combination, a cover having. an opening, avent inl said opening, and sodium compound in said vent adapte'd'totreat escaping corrosive gases.

9. In a storage battery, in combination, 'I a a cover having an opening,-a. vent device.

in said opening having a transparent cap,

means in said device for treating and neutralizing escaping corrosiveases, and

'means visible throu h said cap or 'indicat-v such treating and neu ingthe condition o tralizirig means.

10: In a storage battery, in combination, a cover having.v an openingtherein, a vent ios in said opening comprising a combined i vaporarrester and corrosive gas neiitraliziiovr ing means, a transparent capfor said vent, and means' visible through said cap ,for inl h ma;vmeans.

11. In a storage battery, in combination, a` cover having anopeningtherein, and a vent device in saidbpening-fcomprising combined vapor,arrester and corrosive lgas dicatin' the condition of said gasneutralizneutralizing means, such vapor arrester proi jecting `into thebattery and vcooperating with said cover to providesan acidftrap.

In testimony whereof, I affix my signature.

nari-toni) "o, snuiven.

lao

